EP4109664A1 - Élément de batterie, batterie et dispositif électrique - Google Patents
Élément de batterie, batterie et dispositif électrique Download PDFInfo
- Publication number
- EP4109664A1 EP4109664A1 EP21920852.7A EP21920852A EP4109664A1 EP 4109664 A1 EP4109664 A1 EP 4109664A1 EP 21920852 A EP21920852 A EP 21920852A EP 4109664 A1 EP4109664 A1 EP 4109664A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- connecting portion
- bending
- battery
- battery cell
- present application
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000005452 bending Methods 0.000 claims abstract description 146
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 60
- 230000005611 electricity Effects 0.000 claims abstract description 7
- 238000010586 diagram Methods 0.000 description 11
- 239000007773 negative electrode material Substances 0.000 description 6
- 239000007774 positive electrode material Substances 0.000 description 6
- 229910001416 lithium ion Inorganic materials 0.000 description 4
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000007779 soft material Substances 0.000 description 2
- YTXFOSVCYYHADT-UHFFFAOYSA-N 2,1,3-benzoxadiazol-5-ol Chemical compound C1=C(O)C=CC2=NON=C21 YTXFOSVCYYHADT-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 1
- FKNQFGJONOIPTF-UHFFFAOYSA-N Sodium cation Chemical compound [Na+] FKNQFGJONOIPTF-UHFFFAOYSA-N 0.000 description 1
- JDZCKJOXGCMJGS-UHFFFAOYSA-N [Li].[S] Chemical compound [Li].[S] JDZCKJOXGCMJGS-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 description 1
- VVNXEADCOVSAER-UHFFFAOYSA-N lithium sodium Chemical compound [Li].[Na] VVNXEADCOVSAER-UHFFFAOYSA-N 0.000 description 1
- 229910001425 magnesium ion Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910001415 sodium ion Inorganic materials 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
- H01M50/503—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the shape of the interconnectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/543—Terminals
- H01M50/552—Terminals characterised by their shape
- H01M50/559—Terminals adapted for cells having curved cross-section, e.g. round, elliptic or button cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside a battery casing
- H01M50/533—Electrode connections inside a battery casing characterised by the shape of the leads or tabs
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
- H01M50/107—Primary casings; Jackets or wrappings characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/147—Lids or covers
- H01M50/148—Lids or covers characterised by their shape
- H01M50/152—Lids or covers characterised by their shape for cells having curved cross-section, e.g. round or elliptic
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/172—Arrangements of electric connectors penetrating the casing
- H01M50/174—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells
- H01M50/179—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells for cells having curved cross-section, e.g. round or elliptic
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/528—Fixed electrical connections, i.e. not intended for disconnection
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside a battery casing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside a battery casing
- H01M50/534—Electrode connections inside a battery casing characterised by the material of the leads or tabs
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside a battery casing
- H01M50/536—Electrode connections inside a battery casing characterised by the method of fixing the leads to the electrodes, e.g. by welding
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/543—Terminals
- H01M50/545—Terminals formed by the casing of the cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/572—Means for preventing undesired use or discharge
- H01M50/584—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries
- H01M50/586—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries inside the batteries, e.g. incorrect connections of electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/572—Means for preventing undesired use or discharge
- H01M50/584—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries
- H01M50/59—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries characterised by the protection means
- H01M50/593—Spacers; Insulating plates
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/30—Batteries in portable systems, e.g. mobile phone, laptop
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Definitions
- the present application relates to the technical field of battery, in particular, to a battery cell, a battery and an electricity consuming device.
- the rechargeable battery Since the rechargeable battery has the advantages of high energy density, high power density, many cycles of use and long storage time, it has been widely used in electric vehicles, mobile devices or power tools.
- the adapter In current batteries, the adapter is generally used to connect the tab and the electrode terminal of the batteries. In batteries, it is usually necessary to bend the adapter. In order to facilitate the bending, the adapter cannot be made too thick. It is usually a soft sheet structure. Due to the low overall hardness of the adapter, when bending, the adapter bends easily in non-predetermined areas, resulting in the offset of the crease, and the adapter that is not bent as predetermined will easily prevent the electrode assembly from being installed into the shell of the battery. If it is forcibly installed into the shell of the battery, it will cause the adapter to be overstressed locally, which will reduce the life of the adapter, and thereby affect the service life of the battery.
- the present application provides a battery cell, a battery and an electricity consuming device, which can bend the adapter between the electrode terminal and the tab along a predetermined position.
- the present application proposes a battery cell including a tab; an electrode terminal; and an adapter for electrical connection between the electrode terminal and the tab;
- the adapter includes a first connecting portion for electrical connection with the electrode terminal; a second connecting portion for electrical connection with the tab; a third connecting portion for connecting the first connecting portion and the second connecting portion; a bending portion, the third connecting portion is connected with the second connecting portion by the bending portion and the third connecting portion is connected with the second connecting portion by the bending portion; wherein, the third connecting portion includes a reinforcing portion, and the reinforcing portion is located at the side of the third connecting portion connected with the bending portion;
- the minimum distance L between an edge of the reinforcing portion and a center line of the bending portion satisfies: R ⁇ L ⁇ (R+2 mm), where L is the minimum distance between the edge of the reinforcing portion and the center line of the bending portion, and R is a bend radius of the bending portion.
- the reinforcing portion extends from a bending portion of the third connecting portion close to the first connecting portion to a bending portion of the third connecting portion close to the second connecting portion.
- the number of reinforcing portions is at least two, which are respectively located on a side of the third connecting portion close to the first connecting portion and a side of the third connecting portion close to the second connecting portion.
- the reinforcing portion includes a protruding structure, disposed on at least one side surface of the third connecting portion along a thickness direction of the third connecting portion.
- the protruding structure includes a plurality of protruding portions, and the protruding portions are arranged in a direction parallel to the centerline of the third connecting portion.
- the thickness of the protruding structure is less than or equal to the bending radius of the bending portion.
- the reinforcing portion includes an insulating layer covering at least a part of at least one side surface of the third connecting portion in a thickness direction of the third connecting portion.
- the insulating layer covers two side surfaces of the third connecting portion along the thickness direction.
- the thickness of the insulating layer is less than or equal to the bending radius of the bending portion.
- the present application proposes a battery including: the battery cell of the first aspect.
- the present application proposes an electricity consuming device including the battery cell of the first aspect, and the battery cell is configured to provide electrical energy.
- a reinforcing portion is provided on the connecting piece of the battery cell, and the position of the bending axis of the bending portion is limited by the reinforcing portion.
- reference to an "embodiment” means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application.
- the appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor a separate or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in the present application may be combined with other embodiments.
- the terms “install”, “connected with”, “connect” and “attach” should be understood in a broad sense.
- it can be a fixed connection, and can also be a detachable connection, or an integral connection; it can be a direct connection, an indirect connection through an intermediate medium, or an internal communication between two components.
- install can be a fixed connection, and can also be a detachable connection, or an integral connection; it can be a direct connection, an indirect connection through an intermediate medium, or an internal communication between two components.
- Term "and/or” in the present application is only a kind of association relationship that describes associated objects, and indicates that there can be three kinds of relationships, for example, A and/or B, which can indicate three cases: A alone exists, A and B exist simultaneously, and B alone exists.
- the character "/" in the present application generally indicates that the related objects are in an "or" relationship.
- Multiple that appears in the present application refers to two or more (including two).
- “multiple groups” refers to more than two groups (including two groups)
- “multiple sheets” refers to two or more pieces (including two pieces).
- the battery cell can include lithium ion secondary battery, lithium ion primary battery, lithium sulfur battery, sodium lithium ion battery, sodium ion battery or magnesium ion battery, etc., which are not limited in the embodiments of the present application.
- the battery cell may be in the form of a cylinder, a flat body, a rectangular parallelepiped or other shapes, which are not limited in the embodiments of the present application.
- the battery cell is generally divided into three types according to the packaging method: cylindrical battery cell, square-shaped battery cell, and soft-pack battery cell, which are not limited in the embodiments of the present application.
- the battery mentioned in the embodiments of the present application refers to a single physical module including one or more battery cells to provide higher voltage and capacity.
- the battery mentioned in the present application may include battery module or battery pack and the like.
- the battery typically includes a casing for packing one or more battery cells. The casing can prevent liquids or other foreign objects from affecting the charging or discharging of the battery cell.
- the battery cell includes an electrode assembly and an electrolyte, and the electrode assembly is made up of a positive electrode sheet, a negative electrode sheet and a separator.
- the battery cell mainly relies on the movement of metal ions between the positive and negative sheets to work.
- the positive electrode sheet includes a positive electrode current collector and a positive electrode active material layer, the positive electrode active material layer is coated on the surface of the positive electrode current collector, the current collector that is not coated with the positive electrode active material layer protrudes from the current collector coated with the positive electrode active material layer, and the current collector that is not coated with the positive electrode active material layer serves as the positive electrode tab.
- the material of the positive electrode current collector can be aluminum, and the positive electrode active material can be lithium cobaltate, lithium iron phosphate, ternary lithium or lithium manganite and so on.
- the negative electrode sheet includes a negative electrode current collector and a negative electrode active material layer, the negative electrode active material layer is coated on the surface of the negative electrode current collector, the current collector that is not coated with the negative electrode active material layer protrudes from the current collector coated with the negative electrode active material layer, the current collector that is not coated with the negative electrode active material layer was used as the negative electrode tab.
- the material of the negative electrode current collector can be copper, and the negative electrode active material can be carbon or silicon and so on.
- the positive electrode tabs are multiple in the number and are stacked together, and the negative tabs are multiple in the number and are stacked together.
- the material of the separator can be PP or PE, etc.
- the electrode assembly may be a wound structure or a laminated structure, which are not limited in the embodiments of the present application.
- the technical solutions described in the embodiments of the present application are all applicable to various devices using batteries, such as mobile phones, portable devices, notebook computers, battery cars, electric toys, electric tools, electric vehicles, ships and spacecraft, etc.
- the spacecraft include airplane, rocket, space shuttle, and spaceship.
- the vehicle 1 can be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle can be a pure electric vehicle, a hybrid power vehicle or an extended-range vehicle, etc.
- a motor 40, a controller 30 and a battery 10 may be provided inside the vehicle 1, and the controller 30 is used to control the battery 10 to supply power to the motor 40.
- the battery 10 may be provided at the bottom of the vehicle 1 or at the front or rear of the vehicle. The battery 10 can be used for power supply of the vehicle 1.
- the battery 10 can be used as the operating power source of the vehicle 1 for the circuit system of the vehicle 1, for example, for the operation power requirements at the time of the starting, navigation and operation of the vehicle 1.
- the battery 10 can not only be used as the operating power source of the vehicle 1, but also can be used as the driving power source of the vehicle 1 to provide driving power for the vehicle 1 in place of or partially in place of fuel or natural gas.
- the battery 10 may include a plurality of battery cells, wherein the plurality of battery cells may be connected in series or in parallel or in series-parallel, and the series-parallel refers to a mixture of series connection and parallel connection.
- a battery can also be called a battery pack.
- a plurality of battery cells can be connected in series or in parallel or series-parallel to form a battery module, and then a plurality of battery modules can be connected in series or in parallel or series-parallel to form the battery 10. That is to say, a plurality of battery cells can directly form the battery 10, or can form a battery module first, and then form a battery from the battery module.
- the battery 10 may include a plurality of battery cells 20.
- the battery 10 may further include a casing (or a cover body), the inside of the casing is a hollow structure, and the plurality of battery cells 10 are accommodated in the casing.
- the casing may include two parts which are referred to as the first portion 111 and the second portion 112 respectively, and the first portion 111 and the second portion 112 are fastened together.
- the shapes of the first portion 111 and the second portion 112 may be determined according to the combined shape of the plurality of battery cells 20, and each of the first portion 111 and the second portion 112 may have an opening.
- both the first portion 111 and the second portion 112 can be a hollow cuboid and each has only one surface that is an open surface, the opening of the first portion 111 and the opening of the second portion 112 are arranged opposite to each other, and the first portion 111 and the second portion 112 are fastened with each other to form a casing with a closed chamber.
- a plurality of battery cells 20 are placed in the casing formed after the first portion 111 and the second portion 112 are fastened together, after the plurality of battery cells 20 are combined in parallel connection or in series connection or in series-parallel connection.
- the battery 10 may also include other structures, which will not be repeated here.
- the battery 10 may further include a bus component for realizing electrical connection between the plurality of battery cells 20, such as parallel connection or series connection or series-parallel connection.
- the bus component may realize electrical connection between the battery cells 20 by connecting the electrode terminals of the battery cells 20.
- the bus component may be fixed to the electrode terminals of the battery cells 20 by welding.
- the electrical energy of the plurality of battery cells 20 can be further drawn out through the casing through the conductive mechanism.
- the conductive mechanism may also belong to the bus component. According to different power requirements, the number of battery cells 20 can be set to any value.
- a plurality of battery cells 20 can be connected in series, in parallel or in series-parallel to achieve larger capacity or power. Since the number of battery cells 20 included in each battery 10 may be large, in order to facilitate installation, the battery cells 20 may be arranged in groups, and each group of battery cells 20 constitutes a battery module. The number of battery cells 20 included in the battery module is not limited, and can be set according to requirements. For example, Fig. 3 is an example of a battery module.
- the battery may include a plurality of battery modules, and the battery modules may be connected in series, parallel, or in series-parallel.
- Fig. 4 is a schematic diagram of a battery cell 20 according to an embodiment of the present application
- Fig. 5 is an exploded view of the battery cell 20 corresponding to Fig. 4
- Fig. 6 is a sectional view of the battery cell 20 corresponding to Fig. 4 .
- the battery cell 20 includes: an electrode assembly 25, a shell 22 and an end cap assembly.
- the shell 22 is a hollow column structure, for example, a cylindrical structure. It can be understood that the shell 22 may also have other structures, such as a prismatic shape, etc. In the present application, a cylindrical shape is used as an example for description.
- the end face of the shell 22 is an open face, that is, the end face does not have a wall so that the shell 22 communicates with the inside and the outside.
- the end cap assembly includes an end cap 26 that covers the opening of the shell 22 and is connected to the shell 22 to form a closed cavity in which the electrode assembly 25 is placed.
- the shell 22 is filled with an electrolyte, such as an electrolytic solution.
- the end cap 26 is generally flat.
- both ends of the shell 22 have openings.
- two end cap assemblies are provided, and the end caps 26 of the two end cap assemblies are respectively used to close the corresponding openings.
- the end cap assembly further includes an electrode terminal 23, and the electrode terminal 23 is provided on the end cap 26.
- the end cap 26 has a through electrode lead-out hole, and the electrode terminal 23 can pass through the electrode lead-out hole and protrude to the outside of the end cap 26.
- the number of electrode terminals 23 of each end cap assembly is one or more. In some examples, the electrode terminals 23 of each end cap assembly are multiple.
- the end cap assembly further includes a sealing member and an insulating member. The sealing member is disposed between the terminal plate and the end cap 26 and is used to seal the electrode lead-out holes.
- the insulating member is provided on the inner side of the end cap 26 and serves to separate the cap plate 25 from the electrode assembly 25.
- the electrode assembly 25 has two tabs 21, and the polarities of the two tabs 21 are opposite.
- the two tabs 21 are located at two ends of the electrode assembly 25 respectively, and are respectively electrically connected to the electrode terminals 23 of one end cap assembly.
- the electrode terminal 23 to which the positive electrode tab is electrically connected is a positive terminal and the electrode terminal 23 to which the negative electrode tab is electrically connected is a negative terminal.
- the end cap assembly further includes an adapter 24, and the adapter 24 is used for the electrical connection between the electrode terminal 23 and the tab 21.
- the adapter 24 is located between the tab 21 and the end cap 26.
- Fig. 7 is a schematic diagram of the connecting state of the electrode terminal and the adapter 24 before the adapter 24 of an embodiment of the present application is bent;
- Fig. 8 is a sectional view taken along A-A section line of the electrode terminal 23 and the adapter 24 of Fig. 7 ;
- Fig. 9 is a schematic diagram of the connecting state of the electrode terminal 23 and the adapter 24 after the adapter 24 according to an embodiment of the present application is bent;
- Fig. 10 is a sectional view taken along B-B section line of the electrode terminal 23 and the adapter 24 of Fig. 9 ;
- Fig. 11 is a top view of the adapter 24 in an unbent state according to an embodiment of the present application.
- the adapter 24 includes a first connecting portion 241, a second connecting portion 242, a third connecting portion 243 and a bending portion 244.
- the first connecting portion 241 is used for electrical connection with the electrode terminal;
- the second connecting portion 242 is used for electrical connection with the tab 21;
- the third connecting portion 243 is used for connecting the first connecting portion 241 and the second connecting portion 242;
- the third connecting portion 243 is connected with the first connecting portion 241 by the bending portion 244 and the third connecting portion 243 s connected with the second connecting portion 242 by the bending portion 244.
- Fig. 12 is a sectional view taken along C-C section line when the adapter 24 of Fig. 11 is in an unbent shape
- Figure 13 is a sectional view taken along the C-C section line after the adapter 24 of Figure 11 is bent.
- the bending portion 244 between the first connecting portion 241 and the third connecting portion 243 is bent along the first direction X
- the bending portion 244 between the second connecting portion 242 and the third connecting portion 243 is bent along the second direction Y, wherein the first direction is opposite to the second direction, so that the first connecting portion 241, the third connecting portion 243 and the second connecting portion 242 form three-layer layered structure.
- the adapter 24 Before bending, the adapter 24 is generally plate-shaped and has a relatively large length. At this time, the adapter 24 can be conveniently connected to the tab 21; after the adapter 24 is connected to the tab 21, the adapter 24 is bent. By bending the adapter 24, the space occupied by the adapter 24 can be reduced, and the connection between the end cap 26 and the shell 22 is facilitated.
- the first connecting portion 241, the second connecting portion 242, the third connecting portion 243 and the bending portion 244 are integral sheet structures, all of which are part of the adapter 24.
- the bending portion 244 and the third connecting portion 243 are located on the same plane, and the center line of the bending portion 244 in this plane is the position of the crease after the bending portion is bent;
- the bending portion 244 forms a bending axis, and the whole bending portion 244 is rotated and bent around the bending axis to form a curved surface.
- the bending axis is parallel to the center line of the bending portion 244 and both determine a virtual plane.
- the virtual plane is parallel to the plane where the third connecting portion is located.
- the position of the center line of the bending portion 244 is the position of the bending crease.
- the adapter 24 Since the adapter 24 is in the shape of a sheet as a whole, it is usually made of a soft material to facilitate bending.
- Fig. 14 is a partial enlarged view of the third connecting portion 243 and the bending portion 244 corresponding to Fig. 11 in an embodiment of the present application.
- the third connecting portion 243 includes a reinforcing portion 245, two opposite sides of the third connecting portion 243 are connected to the two bending portions 244, and the reinforcing portion 245 is located between the two sides. Since the reinforcing portion 245 bends more difficultly than the bending portion 244, when the bending portion 244 is bent, the edge of the reinforcing portion 245 can be bent so that the crease of the bending portion 244 is coincided with the preset crease so as to attain that the reinforcing portion 245 can position the bending portion 244.
- the minimum distance L between the edge of the reinforcing portion 245 and the centerline of the bending portion 244 satisfies: R ⁇ L ⁇ (R+2 mm), where L is the minimum distance between the edge of the reinforcing portion 245 and the centerline of the bending portion 244, R, is the bending radius of the bending portion 244 . Since R ⁇ L ⁇ (R+2 mm), the reinforcing portion 245 will not be too far or too close to the bending portion 244. Once the reinforcing portion 245 is too far away from the bending portion 244, the position-limiting effect of the reinforcing portion 245 on the bending portion 244 will be weakened, resulting in an inaccurate bending position.
- the reinforcing portion 245 will affect the bending of the bending portion 244, resulting in difficulty in bending. It should be noted that, as shown in Fig. 13 , when the bending portion 244 is in a bent state, the bending radius R is the inner diameter of the bending of the bending portion 244.
- the bending crease of the bending portion 244 can be prevented from being offset, reducing the possibility of wear and damage of the adapter in contact with the casing 22 due to the offset of the crease and increasing the service life of the adapter 24.
- the reinforcing portion 245 extends from a side of the third connecting portion 243 close to the first connecting portion 241 to a side of the third connecting portion 243 close to the second connecting portion 242. Since the reinforcing portion 245 extends on the third connecting portion 243, when the adaptor 24 is bent, the adaptor 24 is directly bent along the reinforcing portion 245, and the position of the corresponding crease of the bending portion 244 can satisfy the requirements of the preset crease position.
- the reinforcing portion 245 may cover two side surfaces of the third connecting portion 243 along the thickness direction; or, the reinforcing portion 245 may only cover one side surface of the third connecting portion 243 along the thickness direction.
- Fig. 15 is a partial enlarged view of the third connecting portion 243 and the bending portion 244 of Fig. 11 in another embodiment of the present application.
- the number of the reinforcing portions 245 is at least two, which are respectively located on a side of the third connecting portion 243 close to the first connecting portion 241 and a side of the third connecting portion 243 close to the second connecting portion 242. Since the reinforcing portion 245 is located at the side where the third connecting portion 243 is connected with the bending portion 244, when the adapter 24 is bent, the adapter 24 is directly bent along the reinforcing portion 245, and the position of the corresponding crease of the bending portion 244 can satisfy the requirements of the preset crease position.
- the reinforcing portion 245 are two long strips structures extending along the side where the third connecting portion 243 is connected with the bending portion 244; or, the reinforcing portions 245 are two groups, and each group of reinforcing portions 245 is arranged along the side where the third connecting portion 243 is connected with the bending portion 244.
- Fig.16 is a top view when the adapter 24 of an embodiment of the present application is a protruding structure
- Fig. 17 is a top view when the adapter 24 of another embodiment of the present application is a protruding structure
- Fig. 18 is a top view when the adapter 24 of further another embodiment of the present application is a protruding structure.
- the reinforcing portion 245 includes a protruding structure disposed on at least one side surface of the third connecting portion 243 along the thickness direction of the third connecting portion 243.
- the reinforcing portion 245 is in the form of a protrusion to limit the position of the bending crease of the bending portion 244.
- the bending portion 244 and the third connecting portion 243 are integral structure, and have a coplanar surface along the thickness direction.
- the protruding structure is convex relative to the surface of the third connecting portion 243 along the thickness direction, when the bending portion 244 is bent, the bending crease will extend along the edge of the protruding structure and form a continuous straight line with a determined position, ensuring that after the bending portion 244 is bent, the first connecting portion 241, the second connecting portion 242 and the third connecting portion 243 are mutually parallel and close to each other.
- the protruding structure includes a plurality of protruding portions.
- the protruding portions are arranged in a direction parallel to the bending axis.
- the protruding portions may contain one or more of the following three forms:
- the protruding portions are two groups, each group is provided with a plurality of protrusions, and each group of protrusions is arranged along the side where the third connecting portion 243 is connected with the bending portion 244;
- the protruding portions are two, each protruding portion is long strip shape, and each protruding portion extends along the side where the third connecting portion 243 is connected with the bending portion 244;
- the protruding portions are two, each protruding portion is long strip shape, and each protruding portion extends from the side of the third connecting portion 243 close to the first connecting portion 241 to the side of the third connecting portion 243 close to the second connecting portion 242.
- the thickness of the protruding structure is less than or equal to the bending radius of the bending portion 244.
- the first connecting portion 241 or the second connecting portion 242 will be upwarped relative to the third connecting portion 243, that is, the bending angle of the bending portion 244 is less than 180°, which may increase the distance between the tab 21 and the electrode terminal 23, thereby increasing the axial dimension of the battery cell 20.
- the thickness of the protruding structure in the embodiment of the present application is less than or equal to the bending radius of the bending portion 244, so that after the bending portion 244 is bent, the first connecting portion 241, the third connecting portion 243 and the second connecting portion 242 form a three-layer layered structure, the first connecting portion 241 or the second connecting portion 242 is prevented from being upwarped, so that the battery cell 20 has a smaller axial dimension.
- the reinforcing portion 245 includes an insulating layer covering at least a part of at least one side surface of the third connecting portion 243 along the thickness direction of the third connecting portion 243.
- Fig. 19 is a top view when the adapter 24 according to an embodiment of the present application is an insulating layer;
- Fig. 20 is a top view when the adapter 24 according to an embodiment of the present application is an insulating layer.
- the insulating layer covers two side surfaces of the third connecting portion 243 in the thickness direction.
- the adaptor 24 can electrically connect the tab 21 with the electrode terminal 23, after the adaptor 24 is bent, in order to avoid electrical connection between the side surfaces of the first connecting portion 241, the second connecting portion 242 and the third connecting portion 243 in the thickness direction, which affects the normal use of the battery cells 20, in the present application, the two sides of the third connecting portion 243 in the thickness direction being covered with an insulating layer can not only limit the position of the bending axis of the bending portion 244, but also realize insulation between the side surfaces of the first connecting portion 241, the second connecting portion 242 and the third connecting portion in the thickness direction.
- the thickness of the insulating layer is less than or equal to the bending radius of the bending portion 244.
- the first connecting portion 241 or the second connecting portion 242 will be upwarped relative to the third connecting portion 243, that is, the bending angle of the bending portion 244 will be less than 180°, which may increase the distance between the tab 21 and the electrode terminal 23 and thereby increases the axial dimension of the battery cell 20.
- the thickness of the insulating layer in the embodiment of the present application is less than or equal to the bending radius of the bending portion 244, so that after the bending portion 244 is bent, the first connecting portion 241, the third connecting portion 243 and the second connecting portion 242 form a three-layer layered structure, the first connecting portion 241 or the second connecting portion 242 is prevented from being upwarped, so that the battery cell 20 has a smaller axial dimension.
- each electrode is provided with a corresponding tab 21, a corresponding adapter 24 and a corresponding electrode terminal 23, and the adapter 24 of each electrode can use any of the above-mentioned embodiments to realize the limitation of the position of the bending axis of the bending portion 244.
- the reinforcing portion 245 of the adapter 24 of the positive electrode and the reinforcing portion 245 of the adapter 24 of the negative electrode are all convex structure forms; the reinforcing portion 245 of the adapter 24 of the positive electrode is in the form of a convex structure, the reinforcing portion 245 of the adapter 24 of the negative electrode is in the form of an insulating layer; the reinforcing portion 245 of the adapter 24 of the positive electrode is in the form of an insulating layer, the reinforcing portion 245 of the adapter 24 of the negative electrode is in the form of a convex structure; the reinforcing portion 245 of the adapter 24 of the positive electrode and the reinforcing portion 245 of the adapter 24 of the negative electrode are both in the form of insulating layers.
- the battery cell 20, the battery and the electricity consuming devices provided by the above-mentioned embodiments of the present application are provided with a reinforcing portion 245 on the third connecting portion 243 to limit the position of the bending axis of the bending portion 244, so that the bending axis can be bent at a predetermined position, the bending crease of the bending portion 244 is prevented from being offset, so that the electrode terminal 23 can be smoothly installed in the shell 22 of the battery cell 20, reducing the possibility of damage to the adapter 24 due to the offset of the crease and increasing the service life of the adapter 24.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Battery Mounting, Suspending (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202120205310.2U CN214336804U (zh) | 2021-01-25 | 2021-01-25 | 电池单体、电池以及用电装置 |
PCT/CN2021/140797 WO2022156478A1 (fr) | 2021-01-25 | 2021-12-23 | Élément de batterie, batterie et dispositif électrique |
Publications (2)
Publication Number | Publication Date |
---|---|
EP4109664A1 true EP4109664A1 (fr) | 2022-12-28 |
EP4109664A4 EP4109664A4 (fr) | 2023-10-25 |
Family
ID=77906444
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP21920852.7A Pending EP4109664A4 (fr) | 2021-01-25 | 2021-12-23 | Élément de batterie, batterie et dispositif électrique |
Country Status (6)
Country | Link |
---|---|
US (1) | US11757161B2 (fr) |
EP (1) | EP4109664A4 (fr) |
JP (1) | JP7292528B2 (fr) |
KR (1) | KR102531920B1 (fr) |
CN (1) | CN214336804U (fr) |
WO (1) | WO2022156478A1 (fr) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN214336804U (zh) * | 2021-01-25 | 2021-10-01 | 宁德时代新能源科技股份有限公司 | 电池单体、电池以及用电装置 |
EP4199241A1 (fr) * | 2021-09-16 | 2023-06-21 | Contemporary Amperex Technology Co., Limited | Élément de batterie, batterie, dispositif électrique, et procédé et système de fabrication pour élément de batterie |
WO2023240385A1 (fr) * | 2022-06-13 | 2023-12-21 | 宁德时代新能源科技股份有限公司 | Cellule de batterie, batterie et appareil électrique |
WO2024113298A1 (fr) * | 2022-12-01 | 2024-06-06 | 宁德时代新能源科技股份有限公司 | Ensemble couvercle d'extrémité, élément de batterie, batterie et dispositif électrique |
CN115881447B (zh) | 2023-02-09 | 2023-05-16 | 深圳海润新能源科技有限公司 | 转接片组件、储能装置和用电设备 |
CN116845491B (zh) * | 2023-08-29 | 2023-12-22 | 深圳海辰储能控制技术有限公司 | 隔离板组件、储能装置、用电***及储能*** |
CN118137033B (zh) * | 2024-05-06 | 2024-07-19 | 蜂巢能源科技股份有限公司 | 单体电池、电池包及用电设备 |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3702316B2 (ja) * | 1994-10-21 | 2005-10-05 | 日本電池株式会社 | 電池 |
JP2001135299A (ja) | 1999-11-05 | 2001-05-18 | Sony Corp | 密閉型電池 |
FR2824667B1 (fr) * | 2001-05-14 | 2004-07-02 | Cit Alcatel | Connectique interne pour generateur electrochimique de forte puissance |
JP4780598B2 (ja) * | 2004-09-29 | 2011-09-28 | 日立マクセルエナジー株式会社 | 密閉角形電池 |
KR101297171B1 (ko) * | 2006-07-26 | 2013-08-21 | 삼성에스디아이 주식회사 | 이차 전지 |
KR100833745B1 (ko) | 2007-01-17 | 2008-05-29 | 삼성에스디아이 주식회사 | 이차 전지 |
US8586221B2 (en) | 2007-01-17 | 2013-11-19 | Samsung Sdi Co., Ltd. | Rechargeable battery with protective circuit board lead plates connection |
JP2008218132A (ja) | 2007-03-02 | 2008-09-18 | Matsushita Electric Ind Co Ltd | 密閉形電池 |
KR100947071B1 (ko) | 2007-11-23 | 2010-03-12 | 삼성에스디아이 주식회사 | 이차 전지 |
CN101645520A (zh) | 2008-08-08 | 2010-02-10 | 深圳市比克电池有限公司 | 一种电池装配方法 |
CN102217116B (zh) * | 2008-11-21 | 2015-03-18 | 江森自控帅福得先进能源动力***有限责任公司 | 用于电化学电池的集电器 |
JP2017168183A (ja) | 2014-08-01 | 2017-09-21 | 三洋電機株式会社 | 電池パック |
CN108292732B (zh) * | 2015-12-10 | 2021-06-29 | 松下知识产权经营株式会社 | 电池 |
JP6881108B2 (ja) * | 2017-07-07 | 2021-06-02 | 株式会社村田製作所 | 二次電池の製造方法および二次電池 |
CN108281578B (zh) | 2017-12-07 | 2021-06-01 | 国轩新能源(苏州)有限公司 | 圆柱电池防振式电极盖板 |
CN208014793U (zh) | 2018-01-16 | 2018-10-26 | 宁德时代新能源科技股份有限公司 | 连接构件和充电电池 |
CN207818806U (zh) * | 2018-02-12 | 2018-09-04 | 宁德时代新能源科技股份有限公司 | 电池模组 |
DE102018212337A1 (de) * | 2018-07-24 | 2020-01-30 | Gs Yuasa International Ltd. | Batteriezelle umfassend mehrere Elektroden und Verfahren zum Herstellen einer Batteriezelle |
CN109360932B (zh) * | 2018-11-19 | 2022-06-14 | 上海电气国轩新能源科技(苏州)有限公司 | 一种用于圆柱全极耳锂离子电池的集流盘 |
CN112242593B (zh) | 2020-12-10 | 2021-06-01 | 江苏时代新能源科技有限公司 | 电池单体、电池、用电装置、制造方法及其设备 |
CN214336804U (zh) * | 2021-01-25 | 2021-10-01 | 宁德时代新能源科技股份有限公司 | 电池单体、电池以及用电装置 |
-
2021
- 2021-01-25 CN CN202120205310.2U patent/CN214336804U/zh active Active
- 2021-12-23 KR KR1020227029902A patent/KR102531920B1/ko active IP Right Grant
- 2021-12-23 WO PCT/CN2021/140797 patent/WO2022156478A1/fr unknown
- 2021-12-23 EP EP21920852.7A patent/EP4109664A4/fr active Pending
- 2021-12-23 JP JP2022552287A patent/JP7292528B2/ja active Active
-
2022
- 2022-09-09 US US17/930,722 patent/US11757161B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
WO2022156478A1 (fr) | 2022-07-28 |
JP2023507240A (ja) | 2023-02-21 |
JP7292528B2 (ja) | 2023-06-16 |
EP4109664A4 (fr) | 2023-10-25 |
US20230006317A1 (en) | 2023-01-05 |
KR20220130225A (ko) | 2022-09-26 |
KR102531920B1 (ko) | 2023-05-12 |
US11757161B2 (en) | 2023-09-12 |
CN214336804U (zh) | 2021-10-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US11757161B2 (en) | Battery cell, battery and electricity consuming device | |
EP4113731A1 (fr) | Élément de batterie, batterie et dispositif électrique | |
CN216085104U (zh) | 电池单体、电池及用电装置 | |
CN215896628U (zh) | 一种电池单体、电池及用电装置 | |
CN216085053U (zh) | 电池和用电设备 | |
WO2023174266A1 (fr) | Boîtier, cellule de batterie, batterie et dispositif électrique | |
EP4102606A1 (fr) | Ensemble électrode, élément de batterie, batterie et dispositif consommateur d'énergie | |
CN115425372B (zh) | 电极极片、电极组件、电池单体、电池和用电设备 | |
WO2023246134A1 (fr) | Feuille d'électrode, ensemble d'électrodes, élément de batterie, batterie et dispositif électrique | |
EP4407758A1 (fr) | Élément de batterie, batterie, dispositif électrique, et procédé et dispositif de fabrication d'élément de batterie | |
EP4089769A1 (fr) | Ensemble électrode, élément de batterie, batterie, et procédé et dispositif de fabrication d'ensemble électrode | |
WO2023065923A1 (fr) | Cellule de batterie, batterie et appareil électrique | |
US20240055646A1 (en) | Wound electrode assembly, battery cell, battery, and electrical device | |
US11710872B2 (en) | Battery cell, battery, power consumption device and manufacturing device and method for battery cell | |
US20230238540A1 (en) | Electrode assembly, battery cell, battery, and method and device for manufacturing electrode assembly | |
CN115699445B (zh) | 电池单体、电池、用电设备及电池单体的制造方法和设备 | |
WO2023168954A1 (fr) | Élément de batterie, procédé de fabrication d'élément de batterie, unité de batterie, batterie et dispositif électrique | |
CN217768702U (zh) | 电池单体、电池以及用电装置 | |
CN217788578U (zh) | 端盖组件、电池单体、电池及用电装置 | |
EP4407740A1 (fr) | Élément de batterie, batterie et dispositif électrique | |
WO2023065366A1 (fr) | Batterie, dispositif électrique, procédé de préparation de cellule de batterie et dispositif | |
US20240258585A1 (en) | Battery cell, battery and power consumption apparatus | |
WO2023220887A1 (fr) | Couvercle d'extrémité, cellule de batterie, batterie et dispositif électrique | |
US20240258586A1 (en) | Battery cell, battery and power consumption apparatus | |
CN221262465U (zh) | 电池单体、电池及用电装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
17P | Request for examination filed |
Effective date: 20220922 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R079 Free format text: PREVIOUS MAIN CLASS: H01M0050503000 Ipc: H01M0050528000 |
|
A4 | Supplementary search report drawn up and despatched |
Effective date: 20230927 |
|
RIC1 | Information provided on ipc code assigned before grant |
Ipc: H01M 50/593 20210101ALI20230921BHEP Ipc: H01M 50/586 20210101ALI20230921BHEP Ipc: H01M 50/534 20210101ALI20230921BHEP Ipc: H01M 50/533 20210101ALI20230921BHEP Ipc: H01M 50/528 20210101AFI20230921BHEP |
|
DAV | Request for validation of the european patent (deleted) | ||
DAX | Request for extension of the european patent (deleted) |